Feel Good Inc. is clearly a bit overdone on the hi-hats and rides on the drums, but its a fun chart that makes up for it.
The song's intro and verses focus on an interesting (and also quite enjoyable) drum beat where you are constantly switching between hitting the hi-hat and ride with a simple kick and snare beat being played on top of that.
There are some tricky things that may catch you off guard every once in awhile such as two crashes and a sneaky green tom.
During the acoustic guitar solo, you play a similar pattern to the rest of the song except you are instead playing over the crash and ride that is a little awkward at first, but you eventually get used to it just like the verse. After that chorus you go to another rap section and you return to the normal hi-hat+ride pattern as earlier.
Overall, this song is a bit overdone, but still enjoyable enough to have a high replay value.
If you like this song, you will very likely want to buy it because it is easy and fun on drums.
If you like the Gorillaz, this is one of the few songs available as DLC by them so you should buy it if you like them.